Window fastener



s N A M 0 E L WINDOW FASTENER Filed Oct. 6, 1947 Inventor Leland E. mans Patented- Sept. 27, 1949 hairs!) stares rarest QFFICE WINDOW FASTENER Leland E. Omans, Detroit Lakes, Minn. Application. October 6, 1947, Serial No. 778,099

1 The present invention relates to. certain new and useful improvements, in the category of inventions appertaining to slidable, sash, fasteners,

checks, stops, retainers and the like, and has reference in particular tolatch mean swh-ich is usable in connection with both upper and lower sashes of the types wherein said sashesare mounted for vertical sliding movements in a single window frame structure.

An object of the invention is to structurally, functionally and otherwise improve upon latchtype sash fasteners in the category under advisement by providing an improved and thoroughly practical construction possessed of the utmost in simplicity of form and emciency in use.

More specifically, the preferred embodiment of the invention has to do with a rigidly mounted member carried by the window frame, the same having notches constituting keepers which are adapted to accommodate a spring latch, a part of the fastener, which is selectively engageable with said keeper notches.

More particularly, the invention embodies a novel and practical fastener which is carried by the window sash and which embodies two coacting resilient members, one constituting the aforementioned spring-latch and the other forming a retainer for same, whereby, through the use of both members, said latch may be engaged with the keeper notches as desired, or released and held out of engagement with said notches, whenever necessary or desired.

Other objects, advantages and features will become more readily apparent from the following description and the accompanying illustrative drawing:

In the drawing:

Figure 1 is a fragmentary perspective view showing a portion of a. window frame, portions of upper and lower sliding sashes, a keeper strip or iron on the window frame, and the improved latch-type fastener.

Figure 2 is a front elevational view, on an enlarged scale, showing the lower sash raised and the latch in one of its holding positions.

Figure 3 is a horizontal section on the line of Figure 2, looking in the direction of the arrows.

Figure 4. is a perspective view showing the sash, fregrnentarily, and the improved latch fixture.

Referring now to the drawings by distinguishing reference characters, and particularly to the old parts, it will be seen that A designates the upper sliding sash, B the lower sash, C the frame, D a guide strip for the lower sash on the frame the keeper strip or angle member 5.

3 Claims. (Cl. 2,9280

and; E. the parting strip. In practice, these latchingand stop devices, will be at both sides of the respective sashes. It is believed, howeventhatitis unnecemary to show all. versions of the devices, and a description of one, assemblage will; suffice, it is submitted, for all. The.relatively'stationary keeper means is denoted; by the numeral 5 and isv in the form of an aluminum, or equivalent iron, one flange, 6;, being; secured to the strip D and the other flange '5 extending laterally therefrom in the direction of the sash B and having selectively usable keeper notches 5a. The keeper notches serve to accommodate the latch fastener which is denoted, as a unitary fastening device, by the numeral 8. As shown to advantage in Figure 4, this device 8 comprises one flange 9 which is screwed or otherwise fastened down and in place, as at Ill, and further includes a right angularly disposed flange H. These flanges are bifurcated and separated to define bendable limbs l2 and 13. The entire fastener 8 is of high grade spring steel and the limbs 52 and is are possessed of requisite retentive resiliency. It will be noted that both limbs are longitudinally bowed, are substantially at right angles to one another, and that the same vary in lengths. By this is meant that the limb is is the longer of the two and its head portion Hi projects beyond the corresponding head portion i5 as illustrated. What is more, the inherent tension of the limb i3 is such as to spring the head it outwardly and away from the sash. The corresponding spring properties of the limb 52 are such as to urge said limb and its head l5 toward In fact, the head l5 projects into alignment with said keeper means 5. It follows that when the head !5 is released, it promptly springs in a direction toward the notches, tracks along the notched flange and snaps almost automatically into the notches as they are met. Normally, however, the head i 5 snaps behind the head M and is held by the latter in a direction away from the keeper notches. Therefore, in order to produce the release action, it is necessary for the user to exert thumb pressure against the head l4, thus bowing same toward the sash and allowing the limb IE to hip, in an obvious direction, toward a retenti 1e position.

Briefly, the invention comprises the fixedly mounted angle member with keeper notches and the fastener 8 with the longitudinally bowed spring limbs having heads at their outer ends, one limb, the limb l2, constituting a latch, and

the other limb constituting a detent for holding the latch normally disengaged.

In view of the foregoing description taken in conjunction with the accompanying drawings, it is believed that a clear understanding of the device Will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention, the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and within the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. A sash fastener of the class described comprising two parts rigidly connected together and at right angles to each other, one part being partly fiat and adapted for rigid attachment to a window sash, each part embodying an elongated longitudinally bowed resilient limb, said limbs being at right angles to each other, one limb constituting a. spring latch.

2. A sash fastener of the class described comprising parts rigidly connected together and at right angles to each other, one part being adapted for attachment to a window sash, said parts each embodying a longitudinally bowed resilient limb, said limbs being at right angles to each other, one limb constituting a latch, the remaining limb constituting a detent for holding said latch in a disengaged position.

3. A sash fastener of the class described comprising a fixture including elongated flanges rigidly connected together at corresponding ends and disposed at right angles to each other, each flange having a longitudinally bowed portion, said bowed portions also being at right angles to one another constituting limbs, one limb having a retaining head at its outer end and forming a releasable retaining latch, the other limb being longer than the first-named limb and terminating at its outer end in a head, said last named head constituting a detent for said latch and a latch releasing trip.

LELAND E. OMANS.

REFERENCES CITED The following references are of record in the file of this patent:

' UNITED STATES PATENTS Number Name Date 593,706 Tuitte Nov. 16, 1897 861,070 Wynn July 23, 1907 1,160,505 Giles Nov. 16, 1915 

